Answer:
Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6. Thus, the equation of the line is y = ½x + 6.
Point g because it’s in the middle.
midpoint= the middle.
The total number of gallons of paint needed for the big room is 3x and the number of gallons of paint needed for the small room is 2y.
3x + 2y = 16
Given the sizes of the room, the relation should be that,
x = 2y
Solving the equation,
3(2y) + 2y = 16
y = 2
Therefore x is equal to 4 gallons.
With the condition that only the bigger room is painted, the number of gallons of paint used should be 12 gallons and what is left should be 4 gallons.
Answer:
It should be -3.75 because of how close .75 is rounding up to the next number which is -4
Answer:
about 105 rivets to build 2200 ft of the bridge .
Step-by-step explanation:
first i found out how many rivets it took to build one ft of the bridge .
i divided 42 by 2 to get how many rivets it took to build one ft. i got (21)
21 rivets for 1 ft
next i divided 2200 ft by 21 rivets (2200÷21)= 104.76
104.76 rounded is 105
